ORDER 155. CYPERACE./E. 757 



obtuse, and rarely mucronate glume ; st 4 12', very slender, with setaceous and 

 subradical leaves. Common in wet, cold grounds. (C. microstachya MX.) 



70 C. leneoglochin Ehrh. Spike about 4-flowered, with 1 or 2 $ flowers at 

 the apex; perig. lanceolate, subtriquetrous and tapering, much reflexed, twice 

 longer than the oblong-lanceolate glume; culm 3 8', with subradical and linear 

 leaves. In Ashfield and Hawley, Mass, in a marsh (Porter.) C. pauciflora Light- 

 foot.) 



71 C. obtusata Lilj. (Schk. fig. 159.) $ Glumes oblong, obtuse, white; perig. 

 about 4, ovate-globous, or ellipsoid, tapering-rostrate, smooth, scarious at the orifice, 

 a little longer than the ovate, acute, membranous glume ; culm 2 to 6', erect, leafy 

 below, longer than the Ivs., with the fruit nearly black in maturity, color pale 

 green. N. States and Brit Am. 



72 C. pedunculata MuhL Spikes about 5, 3-sided, distant, on slender, recurved 

 peduncles ; perig. obovate, triquetrous, recurved at the apex, commonly glabrous, a 

 little longer than the oblong or obovate, mucronate, finally brown glume ; culm 4 

 12', triangular, rather procumbent; sta. sometimes removed a little from the 



$ spike. Common in woods. Flowers early in the spring. 



73 C. Baltzellii Chapm, (B. t. 41.) Spikes cylindric, long, dark-colored, with 

 oblong-obovate, obtuse or emarginate, submucronate glumes; $ spike tapering 

 below ; ? spikes 1 to 4, the cauline one peduncled, remote from the staminate, 

 with some $ fls. at its apex, the others on long, slender and nearly radical pedun- 

 cles, all lax-flowered ; perig. oblong-obovate, obtuse, short-rostrate, pediceled, veined, 

 pubescent, equaling or surpassing tho glume; culm 6 to 10' slender, triquetrous, 

 much shorter tJian the flat, rather wide radical leaves. Fla. 



74 C. Wildenowii Schk. (B. t. 95.) Sts. or radical ped. 13 ; spike com- 

 monly single, stameniferous above, or the stamens removed a little ; perig. 5 to 9, 

 scabrous, alternate, loose, oblong and inflated a little, tapering at the base and 

 conic-rostrate above ; $ glumes ovate and acute, the lower ones long and leaf- 

 like, much surpassing the stem. On dry grounds, common throughout the IT. S. 

 One variety has the $ spike distinct ; another is destitute of the long and leafy 

 scales, and is frequent at the North as well as in Fla. 



75 C. Steudelii Kth. (B. t 96.) Sts. or radical ped. 1 8' long; spike com- 

 monly single, with about 12 sterile fls. above; perig. 2 or 3, scabrous above; sub- 

 globous or ellipsoid and inflated, alternate, stipitate, terete; conic-rostrate, with 

 an oblique orifice ; $ glumes usually long and leafy ; Ivs. smooth, soft, narrow, 

 longer far than the culms. Jefferson Co., ^N". Y., and in Ohio and the Western 

 States. 



16 C. Backii Boott. (t. 97.) Ped. radical, 1 4f high, stiff, thick, or large; 

 spike single, with about 3 sterile fls. above ; perig. ovate, globous, smooth throughout, 

 2 to 4, conic-rostrate, entire at the orifice, when mature pear-shaped, the beak 

 articulated to the fruit; ? glumes usually long and leaf-like, inclosing the fruit; 

 Ivs. radical, flat, thick, rough or scabrous and short. Jefferson Co., N. Y. and 

 Arc. Am. Tho two preceding species are closely related, and yet look very dif- 

 ferent. The first (No. 74) is the slenderest. 



77 C. squarrosa L. Spikes 1 4, oblong, cylindric, obtuse, upper one attenuated 

 below at first by the decurrent $ flowers, all very densely flowered; perig. ovate, 

 subglobous, long-rostrate, 2-toothed, horizontal, glabrous and subsquarrous, longer 

 than the lanceolate glume ; cm. 1 2f, slender for the large spike or spikes ; lower 

 spikes pedunculate. Large and fine. It is C. typhina My. when only one spike 

 is present. X. Eng. to 111. and southward. 



J3. (C. TYPHINOIDES Schw.) Spikes 2, the lower on a very long peduncle, and 

 both longer and smaller. 



78 C. scirpoidea MX. Spike oblong, cylindric, acutish; $ glume oblong, ob- 

 tusish; perig. ovate (oval), subrostrate, pubescent, longer than the ovate, acutish, 

 scarious dark purple glume; st. 4 10', erect; Ivs. flat and long. White Mte., 

 K. H. (Oakes), Wiiloughby ML, Vt. (Wood), Drummond's Isle, Mich, and north- 

 ward (Carey). 



79 C. Boottiana Benth. (B. t. 42.) Spikes oblong-cylindric, attenuate at base, 

 with a scale-like bract ; a $ fepike on one culm and a $ spike (or 2) on another, 

 sparse-flowered below; perig. oblong-obovate, hairy, apiculate, entire at orifice, 



